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Biology, 21.06.2019 20:00
Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data
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Biology, 22.06.2019 01:20
Question 3(multiple choice worth 4 points) (02.04 lc) which best describes the function of chloroplast? allows certa molecules to enter and exit the cell makes food during photosynthesis detoxifies waste products o packages proteins into vesicles
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Biology, 22.06.2019 01:30
Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas
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Biology, 22.06.2019 14:00
To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations
Answers: 1
Why can't chemical changes be reversed? examples to explain...
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